package lab02.test32;

import java.util.HashMap;
import java.util.Map;

public class Test32 {
    public static void main(String[] args) {
        //map
        Map<String,String> person=new HashMap<String, String>();
        person.put("id","1");
        person.put("gender","男");
        person.put("name","张三");
        person.put("age","25");
        person.put("love","爱学java");
        for (Map.Entry<String ,String>entry:person.entrySet()){
            System.out.println(entry.getKey()+":"+entry.getValue());
        }
        System.out.println("集合的大小："+person.size());
        person.remove("age");
        System.out.println("删除元素的值："+person.get("age"));
        System.out.println("集合的大小："+person.size());
    }
}
